Table T5. Lithologic units of Leg 176: limits and characterization. (Continued on next 2 pages.)
Igneous units of Leg 176: Hole 735B from 500 to 1508 mbsl.
| Unit | Top (mbsf) |
Bottom (mbsf) | Extent (m) |
Rel.vol. (%) |
Top igneous interval |
Bottom igneous interval | Number of intervals |
|---|---|---|---|---|---|---|---|
| VI:
Compound olivine gabbro |
500 | 536 | 36 | 3.6 | 495 | 511 | 17 |
| End Leg 118 | Continued from Leg 118 | ||||||
| VII:
Gabbronorite and oxide gabbronorite |
536 | 599 | 63 | 6.3 | 512 | 546 | 35 |
| VIII:
Olivine gabbro |
599 | 670 | 71 | 7.0 | 547 | 568 | 22 |
| IX:
Gabbronorite and gabbro |
670 | 714 | 44 | 4.4 | 569 | 600 | 32 |
| X:
Olivine gabbro and gabbro |
714 | 960 | 246 | 24.4 | 601 | 716 | 116 |
| XI:
Olivine gabbro |
960 | 1314 | 354 | 35.1 | 717 | 880 | 164 |
| XII:
Olivine gabbro and troctolitic gabbro |
1314 | 1508 | 194 | 19.2 | 881 | 952 | 72 |
| Bottom of Hole 735B | Continues | ||||||
| Total | 1008 | 100 | 458 | ||||
Note: * = For Unit VI (450-536 mbsf): 6% troctolitic gabbro, 63% olivine gabbro, 15% gabbro, 16% oxide gabbro.